Still no way to disable it?

@Kevin_Z So, I've just chagend my ISP to Fasternet (fiber) and indeed now the time servers work.

@Kevin_Z They are Claro, as previously stated. I don't think they block NTP servers. I can ping the servers (<20ms), if that helps.

@Kevin_Z I've tried multiple ntp servers and they all fail (Get Time From NTP Server Time Out). Any tips?

@Kevin_Z It resets the time setting permanently. I set it to "manually" or to "get from managing device". After reboot it's back to "get from internet" and with the wrong time. I can't choose to...

@Kevin_Z May I know who is your ISP, and what kind of WAN connection type on the C80? My ISP is Claro (Brazil, I prefer support in english and my router is the US version). Using Dynamic IP. My modem...